I used coconut oil on my chickens this Spring and was so happy and shocked with how well it worked! I treated twice and haven't seen lice since. Yippee! The only draw back was that my chickens have had bare butts ever since. It's almost like they liked the taste of the coconut oil so they ate the feathers. Any one else have this happen? Finally, I notice a few feathers coming in on a few chickens. Otherwise completely bare butts! It's gonna be a cold Winter for them!